Evolution
Can a non-Carnivore's Intelligence be used during another player's feeding turn, or in response to a Carnivore's attack?
Several players agree, and a designer reply points the same way, with no designer ruling spelling out the response-window case.
No. Intelligence is used on your own feeding turn, as an addition to your normal feeding. Once a Carnivore's attack has started there is no response window for it, and a defending species cannot use Intelligence to stop an attacker.